Addition and subtraction, unit 2
 Detailed progression guide updated to include + and - unit 2
 c25 new lessons for + and - unit 2 - the only lessons that are similar to the ones from last year are the lessons on number facts - we would encourage teachers in all year groups to look at content from the previous year group.
 Y2 teachers - there is a lot to do. If this means the unit takes two weeks - that's fine.